| 小麦条锈病防治指标的研究 |
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| 引用本文： | 郭荣华. 小麦条锈病防治指标的研究[J]. 西昌学院学报(自然科学版), 2005, 19(1): 39-42 |
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| 作者姓名： | 郭荣华 |
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| 作者单位： | 西昌学院,四川,西昌,615013 |
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| 基金项目： | 四川省农科院植保所资助项目.致谢：原西昌农专农学系95级学生范静苑、罗祥、马超等在本文中做了大量具体工作,在此一并致谢! |
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| 摘 要： | 本项研究表明：冬小麦感条锈病的品种，顶3叶的病情指数（x）与小麦产量的损失率（y）的关系式为y=0．3646x；药剂防治条锈病的适期在旗叶始出至抽穗初期，在此期间小麦顶3叶的病情指数达3％时，即为防治指标；此时施药，仅施一次就能达到极显著的防效。
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| 关 键 词： | 小麦 条锈病 产量损失率 防治适期 防治指标 |
| 文章编号： | 1673-1891（2005）01-0039-04 |
| 收稿时间： | 2005-02-26 |
| 修稿时间： | 2005-02-26 |
On Research of Preventive Target of Wheat Yellow Stripe Rust Disease |
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| GUO Rong-hua. On Research of Preventive Target of Wheat Yellow Stripe Rust Disease[J]. Journal of Xichang College, 2005, 19(1): 39-42 |
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| Authors: | GUO Rong-hua |
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| Affiliation: | Xichang College, Xichang 615013, Sichuan |
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| Abstract: | This research shows: Varieties of winter wheat are infected by wheat yellow stripe rust, the equation is y= 0.3646x about disease index of 3 leaves on the top(x) and losing rate(y) of wheat yield; the fit period for preventing yellow stripe rust by using medicaments is from the beginning of leaves to the beginning of heading. During this period. when disease index of top 3 leaves is up to 3%, it is called preventive target. At this time, applying drugs for only one time can get significant preventive effect. |
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| Keywords: | Wheat Yellow stripe rust disease Losing rate of yield Fit period for prevention Preventive target |
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